Even though servers do have their “protection” against overload throwing a 503 error, at the time when this happen, server can be really overloaded already. This plugin checks the actual CPU load and if higher than specified (by default 2 per every core), displays an error message.
Very simple checking is used and by no means is this a replacement to proper load balancing. Can be useful though, especially when your server system is undergoing a tuning or heavy maintenance, is under weak attack, etc. and you don’t want to disable the site completely.
Currently only Linux servers are supported ( = tested), other UNIX systems should work as well.
Cache detection (if page is cached, serve it regardless the load)
Support for Win servers
Test server compatibility
Storing settings outside of database for speed improvement
Found a bug or have a feature request ? Please report here at the plugin page.
Custom error message and maximum load settings
Fixed default values
Added proper 503 HTTP headers